Toptest originated Automatic Test System fixturing & probe business in 1991, and pioneered the Funcional, In-Circult Testing and the ATE fixturing of loaded printed circuit boards in Taiwan. Functional testing is a particular strength within Toptest.

Toptest's designing criteria for the test system are offering the customers the most appliable solution based on custom-build sepcification and cost as follows:
Industrial standard test platform - MS Windows 95/98, NT, OS2
Modularized system hardware - IEEE-488 I/F instruments, VXI, VME, PCI-Bus hardware structure
System Flexibility - For different UUTs can be met by changing only the program and/or fixture
System Reliability
Easy to use
Competitive Cost